CVE-2024-43639 is a critical Remote Code Execution (RCE) vulnerability affecting the Windows KDC Proxy in various Microsoft Windows Server versions, including 2012 through 2025. With a CVSS score of 9.8, this vulnerability allows an unauthenticated attacker to execute arbitrary code remotely over the network with low attack complexity. While there is no public exploit code available (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community attention with 7 mentions and 4 media articles, indicating high awareness. Currently, it is not listed on the CISA KEV catalog, suggesting no confirmed active exploitation in the wild.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* | ||
r2CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* | ||
< 10.0.14393.7515CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* | ||
< 10.0.17763.6532CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* | ||
< 10.0.20348.2849CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.